Examlex
What are the tasks of system maintenance?
Null Hypothesis
A hypothesis that suggests there is no statistical significance between the two variables in the hypothesis.
Null Hypothesis
An assumption made for statistical testing that indicates no effect or no difference, used as a basis for comparison.
Test Statistic
A value calculated from sample data during hypothesis testing. It is used to decide whether to reject the null hypothesis.
Population Mean
The average value of a set of characteristics for an entire population.
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